generally agreed upon
The Chinese have created the titular Doomsday Machine Why? I don't know. In response, the Americans change a planned mission to space by switching three male astronauts for three female astronauts. Why? To assure the continuation of the human race just in case the Chinese destroy the world. As expected, shortly after lift-off, the Earth is destroyed. Can these seven astronauts make it to Venus to start a new human civilization?